홈 전력 관리 DC/DC switching regulators DC/DC converters
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전력 관리
DC/DC switching regulators
DC/DC converters

TPS62750

활성

USB 전원 애플리케이션용 프로그래머블 입력 전류 제한을 지원하는 2.25MHz, 스텝다운 컨버터

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TPS62750

활성
데이터 시트 지금 주문하기

제품 상세 정보

Rating Catalog Topology Buck Iout (max) (A) 1.3 Vin (max) (V) 6 Vin (min) (V) 2.9 Vout (max) (V) 5.1 Vout (min) (V) 0.8 Features Adjustable current limit, Enable, Light load efficiency, Output discharge, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00078 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 1.3 Vin (max) (V) 6 Vin (min) (V) 2.9 Vout (max) (V) 5.1 Vout (min) (V) 0.8 Features Adjustable current limit, Enable, Light load efficiency, Output discharge, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00078 Duty cycle (max) (%) 100
WSON (DSK) 10 6.25 mm² 2.5 x 2.5
  • Efficiency > 90% at Nominal Operating Conditions
  • Programmable Average Input Current Limits for USB Applications
    • 50mA to 300mA for Low Current Limit Range
    • 300mA to 1.3A for High Current Limit Range ±10% Current Accuracy
  • Stable Output Voltage for Load Transients to Minimize Overshoot at Load Step Response
  • Hot Plug and Reverse Current Protection
  • Automatic PFM/PWM Mode transition (TPS62750)
  • Forced PWM for Noise Sensitive Applications (TPS62751)
  • VIN Range From 2.9V to 6V
  • Adjustable VOUT From 0.8V to 0.85×VIN
  • Softstart for Inrush Current Prevention
  • 2.25 MHz Fixed Frequency Operation
  • Short Cicruit and Thermal Shutdown Protection
  • Available in a 2.5 × 2.5 10 pin SON Package
  • APPLICATIONS
    • USB Wireless Modems
    • Portable USB peripherals
    • Handheld Computers
  • Efficiency > 90% at Nominal Operating Conditions
  • Programmable Average Input Current Limits for USB Applications
    • 50mA to 300mA for Low Current Limit Range
    • 300mA to 1.3A for High Current Limit Range ±10% Current Accuracy
  • Stable Output Voltage for Load Transients to Minimize Overshoot at Load Step Response
  • Hot Plug and Reverse Current Protection
  • Automatic PFM/PWM Mode transition (TPS62750)
  • Forced PWM for Noise Sensitive Applications (TPS62751)
  • VIN Range From 2.9V to 6V
  • Adjustable VOUT From 0.8V to 0.85×VIN
  • Softstart for Inrush Current Prevention
  • 2.25 MHz Fixed Frequency Operation
  • Short Cicruit and Thermal Shutdown Protection
  • Available in a 2.5 × 2.5 10 pin SON Package
  • APPLICATIONS
    • USB Wireless Modems
    • Portable USB peripherals
    • Handheld Computers

The TPS6275x device is a highly efficient synchronous step down dc-dc converter optimized for USB powered portable applications. It can provide up to 1300mA average input current and is ideal for applications connected to a USB host.

With an input voltage range of 2.9 V to 6.0V, the device supports batteries with extended voltage range and is ideal for powering USB applications where USB compliance is required.

The TPS62750 operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range. The TPS62751 operates in Forced PWM mode allowing use in applications that are noise sensitive. An output discharge allows the load to discharge in shutdown.

The 10% accurate average input current limit can be programmed with an external resistor, allowing use in applications such as USB, where the current drawn from the bus must be limited to 500mA.

The TPS6275x allows the use of small inductors and capacitors to achieve a small solution size. The TPS6275x is available in a 2,5mm × 2,5mm 10-pin SON package.

The TPS6275x device is a highly efficient synchronous step down dc-dc converter optimized for USB powered portable applications. It can provide up to 1300mA average input current and is ideal for applications connected to a USB host.

With an input voltage range of 2.9 V to 6.0V, the device supports batteries with extended voltage range and is ideal for powering USB applications where USB compliance is required.

The TPS62750 operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range. The TPS62751 operates in Forced PWM mode allowing use in applications that are noise sensitive. An output discharge allows the load to discharge in shutdown.

The 10% accurate average input current limit can be programmed with an external resistor, allowing use in applications such as USB, where the current drawn from the bus must be limited to 500mA.

The TPS6275x allows the use of small inductors and capacitors to achieve a small solution size. The TPS6275x is available in a 2,5mm × 2,5mm 10-pin SON package.
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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
15개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet High Efficiency Step-Down Converter for USB Applications datasheet (Rev. A) 2009/09/24
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/06
Application note Calculating Efficiency (Rev. A) 2020/03/06
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 2019/06/14
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018/12/11
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 2018/06/22
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017/10/24
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 2016/10/24
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 2015/08/17
Analog Design Journal Five steps to a great PCB layout for a step-down converter 2015/01/29
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 2012/04/26
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012/01/13
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011/06/17
User guide TPS62750EVM-413 2009/08/17

설계 및 개발

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계산 툴

SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
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